EP 2221464 A1 20100825 - Control unit for internal combustion engine
Title (en)
Control unit for internal combustion engine
Title (de)
Steuerungseinheit für Verbrennungsmotor
Title (fr)
Unité de contrôle pour moteur à combustion interne
Publication
Application
Priority
JP 2009035485 A 20090218
Abstract (en)
An internal combustion engine (10) includes an EGR system (40). The EGR system (40) is formed of an EGR passage (41) for introducing exhaust gas from an exhaust passage (30) into an intake passage (20) and an EGR valve (42) that is able to vary the flow passage area of exhaust gas in the exhaust passage (30). An electronic control unit (60) estimates whether liquid-phase water is adherent to the EGR valve (42) on the basis of an engine operating state. When the electronic control unit (60) estimates that liquid-phase water is adherent to the EGR valve (42), the electronic control unit (60) forcibly opens and closes the EGR valve (42) to reduce the amount of water adherent to the EGR valve (42) at the time of stop of engine operation.
IPC 8 full level
F02D 21/08 (2006.01); F02D 41/00 (2006.01); F02M 25/07 (2006.01)
CPC (source: EP)
F02D 21/08 (2013.01); F02D 41/0077 (2013.01); F02M 26/50 (2016.02); F02B 2075/125 (2013.01); F02D 41/042 (2013.01); F02D 2011/108 (2013.01); F02M 26/54 (2016.02); F02M 26/73 (2016.02); Y02T 10/12 (2013.01); Y02T 10/40 (2013.01)
Citation (applicant)
JP 2002227727 A 20020814 - TOYOTA MOTOR CORP
Citation (search report)
- [A] US 2005066659 A1 20050331 - SUPER LEOPOLD [US], et al
- [A] US 2003192516 A1 20031016 - BRUNEMANN GEORGE [US], et al
- [A] US 2008035126 A1 20080214 - AN KIL HYUN [KR]
- [A] JP 2006274961 A 20061012 - NISSAN DIESEL MOTOR CO
- [AD] JP 2002227727 A 20020814 - TOYOTA MOTOR CORP
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2221464 A1 20100825; EP 2221464 B1 20111228; AT E539249 T1 20120115; JP 2010190122 A 20100902; JP 4730448 B2 20110720
DOCDB simple family (application)
EP 10153591 A 20100215; AT 10153591 T 20100215; JP 2009035485 A 20090218